基于移动平台的多重生物识别系统

摘要

随着智能手机在人们日常生活中的广泛使用,移动端的信息安全问题已经不容忽视. 提出一套基于移动端的多重生物特征识别系统,定义多重安全等级,并使用输入习惯识别、脸部识别、说话人身份识别三种生物识别技术取代传统的密码技术来识别手机用户的身份. 实验表明该系统在面对低安全需求时可以提供方便快捷的识别服务;而在高安全等级时,可以实现良好的安全性(最高安全等级错误接受率为0.014%). 相比传统的移动识别模式,该系统不仅更加智能,而且提高了移动身份识别的安全性和实用性.%With the extensive use of smartphones in people's daily life, the information security problem in mobile terminals should no lon-ger be overlooked.This paper presents a mobile terminals-based multi-modal biometric authentication system, it defines multi-level security grade and uses three kinds of biometric recognition technologies, the typing behaviour recognition, the face recognition and the speaker identity recognition, to replace traditional cryptography to authenticate the identity of mobile phone users.Experiments show that the multi-modal authentication system is able to provide convenient and rapid authentication services at low security level.While the security level is high, the system can realise good security performance (with highest security grade of false acceptance rate 0.014%).Compared with tradi-tional mobile authentication model, the proposed multi-modal system is more intelligent, and raises the security and practicability of mobile identity authentication.